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Send a cancellation by registered mail — is it worth it?

Many people automatically send their cancellation by registered mail — worried the recipient might deny receiving it. That is often sensible, but not always necessary. Here is what registered mail really proves and how to send your cancellation in a legally safe way.

Updated August 2026 · 6 minutes read

Hand slipping a letter headed 'Kündigung' into a red envelope with a registered mail sticker

Why registered mail at all?

A cancellation only takes effect once it reaches the recipient — that is, enters their sphere of control (§ 130 BGB). If the recipient disputes receipt, you must prove the letter arrived. This is exactly where registered mail helps: the mailing receipt and tracking document both posting and delivery.

Hand dropping a letter with a registered mail sticker into a yellow postbox, mailing receipt beside it
The mailing receipt with the tracking number is your most important proof — keep it safe.

Which registered-mail option is right?

  • Einwurfeinschreiben (drop-off registered mail): The carrier drops the letter into the recipient's letterbox and records it. Tracking shows "delivered". For most cancellations (gym, mobile contract, insurance) this is the usual choice.
  • Einschreiben mit Rückschein (return receipt): The recipient signs for the letter. Beware: if the recipient is not home, the letter waits at the post office for collection — if it is never collected, you may have no proof of receipt. The Federal Court of Justice has also ruled that even registered mail does not provide complete proof of receipt (BGH, judgment of 21 March 2012 – VIII ZR 95/11).
  • Normal letter with a witness: Legally just as effective if you can prove receipt another way — for example, a second person who watched you post it.

How to send your cancellation safely

  1. Check the deadline: The notice period and desired end date are in your contract. Our notice period calculator works out the latest posting date.
  2. Write the cancellation: Use a cancellation template with contract number, customer number and a clear termination date.
  3. Make a copy: Photograph or copy the finished letter before sealing the envelope.
  4. Send it: By registered mail at a post office or online via the letter editor — you receive a dispatch confirmation.
  5. Keep the evidence: Mailing receipt, tracking record and copy belong together in one folder.

Avoid these typical mistakes

  • Posted too late: What counts is receipt by the recipient, not the posting date. Allow two to three working days of transit.
  • Wrong address: Cancellations must go to the address named in the contract — or the provider's new address after a move.
  • Receipt thrown away: Without the mailing receipt, registered mail is nearly worthless in a dispute.

More on evidential value in Using registered mail correctly and the comparison Registered mail or standard letter.

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